Attachment for bicycles



(No Model.)

R. W. RIESS. ATTACHMENT FOR- BIGYGLES.

No. 469.722. Patented Mar'. 1, 1892..

UNITED STATES PATENT OEEIcE.

RUDOLPH W. RIESS, OF PHILADELPHIA, PENNSYLVANIA.

ATTAOH Nl ENT FOR BICYC LES.

SPECIFICATION forming part of Letters Patent No. 469,722, dated March 1, 1892. Application filed October l2, 1891. Serial No. 408,526. (No model.)

Improvement in Attachments for Bicycles, 'ofl whichthe following is a specification.

My invention relates to attachments for bivcyles; and it consists of certain improvements which are fully set forth in the following specification and are shown in theaccompanying drawings, which form a part thereof.

More particularly Iny invention relates to devices for connecting twobicycles together, so that they may move in unison as one machine; and the particular improvement ofthe present invention relates to the construction of the connecting rod or rods to allow one machine to move slightly independently of the other in going over irregularities in the road, turningv curves, dto., thereby relieving the machines of strains. In turning curves one of the two connected bicycles tends `to move slightly in advance of the other, and in riding over ruts or inequalities in the road the machines tend to change ltheir relative positions slightly to compensate for the inequality of the road. /Vith a rigid connection between the two machines there will be more or less of a strain upon the machines under these circumstances; and it is the object of my invention to entirely overcome this objection.

In carrying out my invention I form the connecting rod or frame by which the machines are joined together in parts and unite the parts by-a spring, so that each part may move slightly with reference toV the other part when either machine tends to move independently of the other. The instant this strain is, however, removed the spring draws the parts of the connectingrod back into their normal relative positions.

In thedrawings, Figure l is a plan view of a pair of bicycles united by my improved connecting-rods. Fig. 2 is a similar view in which the construction of the connectingrods is modified. Fig. 3 is a sectional side elevation of apart of the connection with the ends in section and showing in dotted lines the movements of the rods in a vertical plane. Fig. 4 is a plan view of the same,il1ustrating in dotted lines the movements in an horizontal plane; and Fig. 5 is a perspective view of the spring for uniting the parts of the connecting-rod.

A and A are two machines which are to be connected together.

Bis the connecting-rod by which the frames of the machines are united by means of endclamping pieces b on the ends of rod,adapted for connection with the machine. The clamping-pieces may be adapted fo/r detachable connection with the machines. This connecting-rod is'made in parts, having its parts united by a spring O.

It is not material to my invention, when broadly considered, in -which manner the parts of the connecting-rod B are united by the spring nor what is the particular character of the spring. I prefer, however, to employ a coiled spring C, having its ends c inserted in holes a in the ends of the rods and clamped therein by set-screws D.

If desired, a second connecting-rod E may be employed to connect the rear portions of the machine, and the wheel-forks F may be similarly connected.

The connecting-rods may be provided with brace-pieces G adjacent to their ends, adapted for attachment to different parts of the machine, as shown in Fig. l, or these braces may be omitted, as shown in Fig. 2. These and other minor details of construction may be varied without departing from theinvention.

What I claim as new, and desire to secure by Letters Patent, is-

l. A connecting-rod for connecting two bicycles together, consisting of a rod having its end adapted for attachment with the frames of the machines and formed in parts and having said parts connected by a spring.

2. A sectional connecting-rod for uniting two bicycles together, having its sections united by a spring connection.

3. A connecting-rod for connecting two bicycles together, consisting of arod having its end adapted for attachment with the frames of the machines and formed in parts and having said parts connected by acoiled spring, with its ends let into holes in the ends of the parts.

In testimony of which invention I have Yhereunto set my hand.

RUDOLPH IV. RIESS.

IVitnesses:

WM. JONES, A. H. KEIIRWIEDER.

sis

IOD 

